// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_EVENTS_TEST_TEST_EVENT_PROCESSOR_H_
#define UI_EVENTS_TEST_TEST_EVENT_PROCESSOR_H_

#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "ui/events/event_processor.h"

namespace ui {
namespace test {

    class TestEventProcessor : public EventProcessor {
    public:
        TestEventProcessor();
        ~TestEventProcessor() override;

        int num_times_processing_started() const
        {
            return num_times_processing_started_;
        }

        int num_times_processing_finished() const
        {
            return num_times_processing_finished_;
        }

        void set_should_processing_occur(bool occur)
        {
            should_processing_occur_ = occur;
        }

        void SetRoot(scoped_ptr<EventTarget> root);
        void Reset();

        // EventProcessor:
        bool CanDispatchToTarget(EventTarget* target) override;
        EventTarget* GetRootTarget() override;
        EventDispatchDetails OnEventFromSource(Event* event) override;
        void OnEventProcessingStarted(Event* event) override;
        void OnEventProcessingFinished(Event* event) override;

    private:
        scoped_ptr<EventTarget> root_;

        // Used in our override of OnEventProcessingStarted(). If this value is
        // false, mark incoming events as handled.
        bool should_processing_occur_;

        // Counts the number of times OnEventProcessingStarted() has been called.
        int num_times_processing_started_;

        // Counts the number of times OnEventProcessingFinished() has been called.
        int num_times_processing_finished_;

        DISALLOW_COPY_AND_ASSIGN(TestEventProcessor);
    };

} // namespace test
} // namespace ui

#endif // UI_EVENTS_TEST_TEST_EVENT_PROCESSOR_H_
